diff --git a/abuild.in b/abuild.in
index 7cd2525..b833f21 100644
--- a/abuild.in
+++ b/abuild.in
@@ -2006,7 +2006,7 @@ rootbld() {
 	[ "$CBUILD" = "$CHOST" ] || die "rootbld: cross-building not supported currently"
 
 	local cmd
-	for cmd in bwrap git; do
+	for cmd in bwrap envsubst git; do
 		[ -x "$(which $cmd)" ] || die "rootbld: $cmd not installed"
 	done